With the popularity of smart phones, as the representative of the social media, WeChat and QQ, which can form the media environment, are profoundly changing the social structure and social habits and affecting people's thinking path, and even the majority of people start to establish new behavior patterns. Combined with Dallas Smythe and Jhally's audience commodity or labor theory, this study attempts to introduce the new concepts of labor under the digital economy. Furthermore, this artical uses Critical Political Economy Theory, rethinking digital labor in the field of social media, in order to avoid the alienation of communication process, and revealing the hidden exploitation and secondary distribution of user‐generated content that are created by users. Finally, the findings of the study provide insights into understandings of digital labor.